/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesInterface/Public/Online/Sessions.h
typedef [TMap](API\Runtime\Core\Containers\TMap)< [FSchemaAttributeId](API\Plugins\OnlineServicesInterface\Online\FSchemaAttributeId), [FCustomSessionSetting](API\Plugins\OnlineServicesInterface\Online\FCustomSessionSetting) > FCustomSessionSettingsMap